icuSources/layout/LEGlyphFilter.h

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
   4  *
   5  */
   6
   7 #ifndef __LEGLYPHFILTER__H
   8 #define __LEGLYPHFILTER__H
   9
  10 #include "LETypes.h"
  11
  12 U_NAMESPACE_BEGIN
  13
  14 /**
  15  * This is a helper class that is used to
  16  * recognize a set of glyph indices.
  17  *
  18  * @internal
  19  */
  20 class LEGlyphFilter /* not : public UObject because this is an interface/mixin class */ {
  21 public:
  22     /**
  23      * Destructor.
  24      * @draft ICU 2.4
  25      */
  26     virtual ~LEGlyphFilter();
  27
  28     /**
  29      * This method is used to test a particular
  30      * glyph index to see if it is in the set
  31      * recognized by the filter.
  32      *
  33      * @param glyph - the glyph index to be tested
  34      *
  35      * @return TRUE if the glyph index is in the set.
  36      *
  37      * @internal
  38      */
  39     virtual le_bool accept(LEGlyphID glyph) const = 0;
  40 };
  41
  42 U_NAMESPACE_END
  43 #endif